Machine for indenting stitched surfaces



' (No Model.)

G. S. BODEN. MACHINE FOR INDENTING STITGHBD SURFACES. No. 552,491.

Patented Dec. 31, 1895;

UNITED STATES PATENT OFFICE.

CLARENCE S. BODEN, OF AVON, MASSACHUSETTS.

MACHINE FOR INDENTING STITC HED SURFACES.

SPECIFICATION forming part of Letters Patent No. 552,491, dated December 31, 1895.

Application filed April 16, 1895. Serial No. 54:5,850. (N0 model.)

To aZZ whom it may concern.-

Be it known that I, CLARENCE S. BoDEN, of Avon, in the countyiofNorfolk and State of Massachusetts, have invented certain new and useful Improvements in Machines for Indenting Stitched Surfaces, of which the following is a specification.

This invention relates to machines for forming indentations or creases between fairstitchcs on the exposed upper edges of fairstitched boot and shoe soles; and it has for its chief object to provide a simple and efficient feed device adapted to operate in connection with an indenting-tool which forms the indentations, to move the work after each indentation has been formed, into position to receive the next indentation.

The invention consists in the improvements hereinafter described and claimed.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of an indenting-machine provided with my improvements. Fig. 2 represents an end elevation of the same. Figs. 3 and 4 represent parts of the construction shown in Fig. 2 at different stages of the operation.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents a supportingframe on which is mounted a work-support I), here shown as a roll j ournaled in a bearing Z), which is rendered vertically adjustable by means of a screw-threaded stud b affixed to said bearing, and a nut 19 engaged with said stud and supported between two ears on an arm or bracket a on the supporting-frame.

c and cl represent two carriers, here shown as slides, fitted to move toward and from the work-support in guides a a affixed to the supporting-frame.

0' represents an indenting-tool, which is secured to the carrier 0 in position to indent the upper surface of a sole 3 on the worksupport I) when the carrier 0 is depressed, the said tool having a Vshaped lower end or edge which makes a corresponding indentation in the sole.

cl represents a feed-dog, which is pivoted at d to the carrier d, so that it can oscillate on said carrier toward and from the indenting-tool, and is normally held by a spring cl against a stop (1 on the carrier d. Said stop supports the dog in an inclined position, as shown in Fig. 2, its lower end being at one side of the pivot (1 so that when the dog is moved downwardly its lower end will be caused by contact with the sole s to move laterally on its pivot toward the indentingtool, the lower end of the dog being pointed to engage the sole and cause a corresponding movement thereof. When the feed-dog is raised, its spring 61 draws it back into contact .with the stop dfl'the feed-dog being thus returned to its starting position. The carriers 0 and dare vertically reciprocated by levers 0 61 both mounted to oscillate on a stud f and cams or cam-grooves formed in the-opposite sides of a disk 9, which is affixed to the driving-shaft h, said levers having trundle-rolls entering said cam-grooves. The lever c is connected by a link 0 with the carrier 0, and the lever d is connected by a link (1 with the carrier d. r The said cams are timed to move the carriers 0 cl and their attachments as follows: The sole being in place on the work-support b and the indenting-tool c and its carrierc raised, the carrier d is depressed, causing the feed-dog to strike the work and then swing laterally, as above described, toward the indenting-tool, thus feeding the sole in the direction indicated by the arrow in Fig. 2, the indenting-tool remaining raised during this movement. The feed-dog is arranged to strike the work on the crown of each stitch or at about the center of thelength of the exposed portion of the thread, the lateral movement of the feed-dog causing it to first slip off the crown of the stitch into the slight depression at the point where the stitch meets the next one, the feed-dog thus positively engaging the work and moving it along until the point of the feed-dog is immediately under the point of the indenting-tool and in the path thereof. The carrier dis then raised, and the feed-dog returned to its starting position by the upward movement of the carrier and the action of the spring. The indenting-tool then descends and makes an indentation in the work between the two stitches, as shown in Fig. 4. The carrier 0 is then raised, removing the indenting-tool from the work just before the feed-dog next encounters the work.

The indenting-tool is pivotally connected to the carrier 0 at 0 so that it can swing toward and from the upper of the shoe, and is norm ally pressed outwardly toward the upper by a spring 0 so that it works close to the upper and indents the entire exposed surface of the sole, whatever may be its width. A stop 0 limits the outward movement of the indenting-tool.

The stop (Z is adjustable, so that it may be caused to vary the angle at which the feeddog normally stands when raised from the work, said angle determining the length of the feed movement, since the distance between the point where the feed-dog strikes the work and the point where the feed-dog leaves the work is determined by the angle or inclination of the feed-dog, so that the feed movements of the work can be adjusted to the length of the stitches. Hence by adjusting the stop (1* to move the point of the feed-dog away from the indenting-tool the feed movement is lengthened, while an opposite adjustment of the said stop shortens the feed movement. 1

It will be seen that by the employment of a l feed-dog which is free to oscillateon a recip- 1 rocati-ng slide and is yieldingly held in contact 1 with a stop, I am enabled .to dispense with: "mechanism for giving the feed-dog vpositive; lateral or work-feeding and return movements, these movements being produced by, the up and down movements of the slided and by thespring d I am also enabled to adjust the length of the 'feed movement byextremely 1 simple mean s.name1y,the adjustable stop (1*, i which as here shown is simply a screw suitably engaged with the slide cl.

1 am aware that an indenting-machine has; been made, in which are combined a work-l support, an indenting-tool, mechanism for; moving-said tool toward and from the work-l support,.a work-indentin g feed-dog,and feed- 5 dog operating mechanism which not only; moves said feed-dogtoward and from the work but-also moves it laterally toward and from the indenting-tool. I donot, therefore, claim said combination, my improvement being-confined to a machine in which the lateral or :feed

ing and return movements of the dog are the work-support; a reciprocating carrier having an indenting tool which is movable toward and from the worlesupport; and a work-feed comprising a reciprocating carrier movable toward and from the work-support and provided with a stop, and a spring-pressed feed pivoted to said carrier and yieldingly supported by said stop in an inclined position over the work-support, whereby when the feed-dog carrier is depressed the dog is given a lateral feed movement by its contact with the work and when the said carrier is raised the dog is given a return movement by its spring.

2. A work-indenting machine comprising a work-support a reciprocating carrier having an indenting tool which is movable toward and from the worlesupport; and a work-feed comprising a reciprocating carrier movable toward and from the work-support, a feed-dog pivoted to said carrier, an adjustable stop on the feed-dog carrier, and a spring which holds the feed-dog yieldingly against said stop, the stop being adapted to support the feed-dog .at different angles and thus vary the length of the feed movement.

3. The combination of a work-support, two carriers movable toward and from the worksuppor-t, an indenting tool pivotally connected with one of the carriers and normally pressed outwardly by a spring, a feed-dog mounted on the other carrier, and mechanism for reciprocating the two carriers.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 8th day of April, A. D. 1895.

CLARENCE S. BODEN. Witnesses BATCHELDER, A. D. HARRISON. 

